The Framework Design Of Audio Collection System & The Research Of μC/OS-Ⅱ Port

VDR is an intelligent equipment which is used to record and conserve the important information and parameter of vessel during its voyaging. Its function is similar to the "black box" on the airplane. When vessels meet accident, the data recorded play the important role in analyzing the origin of the accident.μC/OS- II, the Real-time kernel is a highly portable, ROMable, very scalable, preemptive real-time, multitasking kernel(RTOS) for microprocessors and microcontrollers. Its outstanding stalwart quality, dependability and security have already gotten the extensive identification. The embedded system is much more simpler, and the systems is more reliable, the design period is shorter.According to the system requirement, we have designed the VDR audio collection system based on TMS320VC5509 DSP. Based on the expatiate on the concept and the characteristic about the embedded real-time operation system, the kernel ofμC/OS-II is discussed, the task scheduling ofμC/OS-II and the interrupts underμC/OS-II are analyzed. The basal function ofμC/OS- II including task management,time management,memory management and intertask communication is researched. Based on the sufficient cognition ofμC/OS-II ,the condition and the process about the port ofμC/OS-II are analyzed,try to portingμC/OS- II to TMS320VC5509 DSP and succeeded.At last, we have designed task program and processed function optimization for VDR audio acquisition system which enhance the stability and reliability of system.